JPH0511412A - Silver halide color photographic sensitive material - Google Patents

Abstract

PURPOSE:To provide the silver halide color photographic sensitive material adaptive to a compact, light, and easy camera and to provide a photographic film, cartridge and a photographing unit less in problems on curling and other physical characteristics. CONSTITUTION:The silver halide color photographic sensitive material is formed by laminating at least each one of red-, green-, and blue-photosensitive layers and a nonphotosensitive layer on one side of a transparent support of <=100mum thickness, and laminating >=3 gelatin backing layers on the other side. The gelatin is applied to a layer farthest from the support, a middle layer, and a layer nearest to the support in an amount of <=25%, >=12%, and <=60% of the total coating amount of all the backing layers. The photographing unit is obtained by loading the cartridge 21 with this photosensitive material, and combining it with the parts 22-25 of the plastic camera.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a silver halide color light-sensitive material, and more particularly to a silver halide color light-sensitive material suitable for a compact, lightweight and convenient camera.

[0002]

BACKGROUND OF THE INVENTION In recent years, cameras have become smaller and simpler, have improved portability, and have greatly increased opportunities for taking photographs. However, further miniaturization is desired by users, and miniaturization while maintaining high image quality has been widely studied. The so-called 135 size roll film for general use is loaded in the standard format patrone, which is an obstacle to making the camera thinner. In order to reduce the size of the cartridge, it is most effective and convenient to thin the film, that is, the light-sensitive material, and it can be achieved by making the thickness of the support of the light-sensitive material thinner than the conventional thickness of about 120 μm.

On the other hand, the standard size Patrone of 135 size is
Currently, the limit is 36 sheets. There is a demand to put more image information in one cartridge, and this can also be achieved by making the thickness of the support of the photosensitive material thinner than the conventional thickness of about 120 μm.

However, when the support is made thin, the physical properties of the support and the photographic constituent layers are out of balance, and curling is likely to occur. In particular, in the manufacturing and packaging processes of silver halide photosensitive materials, in the process of feeding and rewinding the film in the camera, and in the developing process and drying process at the photo lab, transport problems may occur, causing scratches on the image surface. Strain is not preferable.

It is also clear that when a thin silver halide photosensitive material having a thin support is loaded in a small cartridge, a plastic cartridge, or a photographing unit and stored for a long period of time, curling easily occurs at high temperature or low humidity. It was If curl occurs in the cartridge or the shooting unit, unintentional load is applied when the silver halide photosensitive material is fed or rewound, which may damage the silver halide photosensitive material or cause uneven focus during shooting. Not preferable.

In order to reduce curl, it is possible to provide a backing layer on the side of the support opposite to the photographic constituent layers, but in the case of a thin support, it is difficult to adjust the thickness of the backing layer, Further, it was found that the surface of the silver halide light-sensitive material was sticked, or when the silver halide light-sensitive material was spliced and subjected to a high tension or when it was bent, the film peeled off or cracked, which was not preferable.

It is desired to solve the above problems in order to achieve a compact, lightweight and convenient camera.

[0008]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a silver halide light-sensitive material suitable for a small-sized, light-weight and convenient camera, and further, curl and other problems in physical properties are small. It is to provide a silver halide light-sensitive material, a photographic film cartridge, and a photographing unit suitable for a small-sized, lightweight, simple camera.

[0009]

The objects of the present invention have been achieved by the following. That is, (1) a transparent support having a thickness of 100 μm or less has, on one side, a photographic constituent layer including at least one red photosensitive layer, green photosensitive layer, blue photosensitive layer and non-photosensitive layer. In a silver halide color light-sensitive material having a gelatin backing layer on the other side, the backing layer is composed of two or more layers, and the gelatin coating amount of the layer farthest from the support is equal to the gelatin coating amount of the whole gelatin backing layer. A silver halide color light-sensitive material characterized by being 25% or less.

(2) On one side of a transparent support having a thickness of 100 μm or less, a photographic constituent layer comprising at least one red photosensitive layer, green photosensitive layer, blue photosensitive layer and non-photosensitive layer. A silver halide color light-sensitive material having a gelatin backing layer on the other side, the backing layer comprises three or more layers, and the gelatin coating amount of the layer closest to the support is the gelatin coating of the whole gelatin backing layer. A silver halide color light-sensitive material characterized by being 60% or less of the amount.

(3) On one side of a transparent support having a thickness of 100 μm or less, a photographic constituent layer comprising at least one red photosensitive layer, green photosensitive layer, blue photosensitive layer and non-photosensitive layer, respectively. And a gelatin backing layer on the other side, in the silver halide color light-sensitive material, the backing layer is a layer closest to the support, one or more intermediate layers, and three or more layers farthest from the support. A silver halide color light-sensitive material characterized by comprising a total gelatin coating amount of one or more intermediate layers of 12% or more of the total gelatin coating amount of the gelatin backing layer.

(4) A photographic film cartridge in which the silver halide color light-sensitive material described in (1) or (2) or (3) is loaded in a plastic cartridge.

(5) The plastic cartridge contains a film roll chamber for accommodating a roll-shaped unexposed photosensitive material, a winding chamber for winding the exposed photosensitive material, and an opening having an area of 400 mm ² or more for connecting them. A photographic film cartridge comprising a bridge portion having a.

(6) A photographing unit in which the silver halide color light-sensitive material described in (1), (2) or (3) or the film cartridge described in (4) or (5) is incorporated.

The present invention will be specifically described below.

In the present invention, the thickness of the support is 100 μm or less, preferably 50 to 95 μm, particularly preferably 55 to 9 μm.
It is 0 μm.

As the support of the present invention, a cellulose ester film, a polyester film, a polycarbonate film or the like is preferably used, and particularly, a cellulose triacetate film, a polyethylene terephthalate film,
A polyethylene naphthalate film and a polyparaphenylene terephthalamide film are preferable.

In the present invention, the total film thickness of the photographic constituent layers is 30 μm.
m or less, preferably 25 μm or less, more preferably 21 μm or less and 10 μm or more.

In the present invention, the gelatin backing layer is a layer which is located on the opposite side of the support from the photographic constituent layers and which is provided with an undercoat layer between the support and gelatin as a binder. A layer containing 20% by weight or more is shown.
The thickness of the gelatin backing layer is 1 μm or more and 30 μm or less, preferably 3 μm or more and 20 μm or less, and particularly preferably 4 μm or more and 15 μm or less. The gelatin coating amount is 0.3 to 40 g / m ² , preferably 1.0 to 30 g / m ² , and particularly preferably 1.5 to 20 g / m ² .

In the present invention, the gelatin backing layer is composed of two or more layers, and the gelatin coating amount of the layer farthest from the support is 25% or less of the gelatin coating amount of the whole gelatin backing layer. It is preferably 23% or less, and particularly preferably 21% or less and 5% or more. The effect of the present invention is exhibited under these conditions.

In the present invention, the backing layer comprises three or more layers, and the gelatin coating amount of the layer closest to the support is 60% of the gelatin coating amount of the whole gelatin backing layer.
Or less, preferably 55% or less, particularly preferably 50% or less 10
When it is at least%, the effect of the present invention is exhibited.

In the present invention, the backing layer is composed of three or more layers including a layer closest to the support, one or more intermediate layers, and a layer farthest from the support, and the total gelatin coating amount of the one or more intermediate layers is equal to the total coating amount. , 12% or more, preferably 15% or more, particularly preferably 20% of the gelatin coating amount of the whole gelatin backing layer
Due to the above, the effect of the present invention is exhibited.

The present invention has achieved the object of the invention by forming a gelatin backing layer from a plurality of layers and adjusting the balance of the gelatin coating amount of each layer.

As the gelatin used in the gelatin backing layer of the present invention, known photographic gelatin can be used.

Examples of the gelatin include lime-treated gelatin, acid-treated gelatin, Bull, Soc, Sci, Phot, Japan. No. 16, 30.
The enzyme-treated gelatin as described on page (1966) may be used, or a hydrolyzed product or an enzymatically decomposed product of gelatin may also be used.

In the present invention, low calcium gelatin having a low calcium content is preferable among gelatin. Low calcium gelatin can be easily prepared by subjecting ordinary gelatin to an ion exchange treatment. The calcium content of the low-calcium gelatin used in the present invention is 1,000 ppm or less, preferably 800 ppm or less, and particularly preferably 600 ppm or less.

Matting agents, slip agents, hardeners, surfactants, antistatic agents, dyes and the like known in the art are preferably added to the gelatin backing layer of the present invention.

In the case of the thin support of the present invention, the amount of the surfactant in the gelatin backing layer is preferably 5% by weight to 50% by weight of the amount of the surfactant in the photographic constituent layer. 5
If it is less than 50% by weight or more than 50% by weight, curling properties deteriorate.

In the present invention, it is preferable to add a high boiling point solvent as an oil droplet dispersion to any layer of the gelatin backing layer. Here, the high boiling point solvent has a boiling point of 130 ° C. or higher,
The solvent is preferably 180 ° C. or higher and 400 ° C. or lower, and examples thereof include organic acid esters, inorganic acid esters, polyhydric alcohol esters, and epoxidized oil. In the present invention, a high boiling point solvent having a dielectric constant of 3 or more and 8 or less is preferably added to any layer of the gelatin backing layer, more preferably 4 or more and 7 or less, and even more preferably 4 or more and 7 or less. It is particularly preferable to add 30% by weight or more of the total high boiling point solvent in the gelatin backing layer. The amount of the high boiling point solvent added is preferably in the range of 1% by weight to 70% by weight, particularly 10% by weight, based on gelatin.
% To 50% by weight is preferred.

Preferable specific examples of the high boiling point solvent used in the present invention are those described in "Handbook of Additives for Supplementary Plastics and Rubbers" (Chemical Industry Co., Ltd.), p. 45, JP-A-2-219056, page 29. To HB-1 to 49 described on pages 36 to 36, and compounds S-1 to 32 described on pages 446 to 448 of JP-A-2-294641.

In the present invention, particularly preferable high boiling point solvents include di-2-ethylhexyl phthalate (dielectric constant 5.18),
Tri-2-ethylhexyl phosphate (5.14), di-n-phthalate
Octyl (5.0), dicyclohexyl isophthalate (5.
8) and tri-p-nonylphenyl phosphate (5.08). In the present invention, the high boiling point solvent is preferably added to the gelatin backing layer closest to the support.

In the present invention, a silver halide emulsion is added to the photosensitive layer in the photographic constituent layers.

In the present invention, the silver halide emulsion is used after physical ripening, chemical ripening and spectral sensitization.
Additives used in such a process are described in Research Disclosure No. 17643, No. 18716 and No. 308119 (hereinafter abbreviated as RD17643, RD18716 and RD308119, respectively). The table below shows the locations.

[Item] [Page of RD308119] [RD17643] [RD18716] Chemical sensitizer 996 III-A Item 23 648 Spectral sensitizer 996 IV-A-A, B, C, D, E to J Item 23 -24 648-9 Supersensitizer 996 IV-AE, J Item 23-24 648-9 Antifoggant 998 VI 24-25 649 Stabilizer 998 VI In the present invention, a photographic constituent layer is known. Photographic additives are added.

Known photographic additives that can be used in the present invention are also described in the above-mentioned Research Disclosure.
The table below shows the locations.

[Item] [Page of RD308119] [RD17643] [RD18716] Color turbidity inhibitor 1002 VII-I Item 25 650 Dye image stabilizer 1001 VII-J Item 25 Whitening agent 998 V 24 UV absorber 1003 VIII- C, XIII C Item 25 to 26 Light absorber 1003 VIII 25 to 26 Light scattering agent 1003 VIII Filter dye 1003 VIII 25 to 26 Binder 1003 IX 26 651 Antistatic agent 1006 XIII 27 650 Hardener 1004 X 26 651 Plasticizer 1006 XII 27 650 Lubricant 1006 XII 27 650 Activator / Coating aid 1005 XI 26 to 27 650 Matting agent 1007 XVI Developer (contained in the photosensitive material) 1011 XXB Item Various couplers can be used in the present invention, Specific examples thereof are described in the above-mentioned Research Disclosure. The following table shows the relevant locations.

[Item] [Page of RD308119] [RD17643] Yellow coupler 1001 VII-D item VIIC-G item Magenta coupler 1001 VII-D item VIIC-G item Cyan coupler 1001 VII-G item VIIC-G item Colored coupler 1002 Item VII-G Item VIIG Item DIR coupler 1001 Item VII-F Item VIIF Item BAR coupler 1002 Item VII-F Other useful residues 1001 Item VII-F Release coupler Alkali-soluble coupler 1001 Item VII-E Additives used in the present invention Can be added by the dispersion method described in RD308119XIV.

In the present invention, the aforementioned RD17643 page 28, RD1
8716 pp. 647-8 and RD308119, XVII-K, auxiliary layers such as filter layers and intermediate layers can be provided.

The light-sensitive material of the present invention is the above-mentioned RD308119VII-
Various layer configurations such as the forward layer, the reverse layer, and the unit configuration described in the section K can be adopted.

In the present invention, the silver halide light-sensitive material can be cut into a roll shape, wound on a spool, and then loaded in a cartridge to obtain a silver halide light-sensitive material stored in a roll shape. In order to be suitable for a compact, lightweight, and simple camera, the condition for storing in a roll is (roll diameter-
(Spool diameter) / (Number of windings x 2) -Base thickness is 20 μm to 60
It is preferably μm. As a result, it is possible to prevent scratches when the film is fed out and rewound, and crushing of the edge of the film due to misalignment.

In the present invention, a film roll chamber for accommodating a roll-shaped unexposed light-sensitive material, a winding chamber for winding the exposed light-sensitive material, and a bridge portion for connecting them and having an opening with an area of 400 mm ² or more. It is possible to obtain a photographic film cartridge in which the silver halide color light-sensitive material is loaded in a photographic film cartridge consisting of

The silver halide color light-sensitive material of the present invention is
By using a shooting unit that is preloaded in a camera with a fixed focus, fixed aperture, and fixed shutter speed, it is possible to increase the number of photo opportunities with a small, lightweight, and simple camera, and to greatly improve print yield. .

In the present specification, the cartridge portion means
Load the photosensitive material into a cartridge consisting of a film roll chamber for storing unexposed photosensitive material in roll form, a winding chamber for winding the exposed photosensitive material, and a bridge section that connects them and has an opening with an area of 400 mm ² or more. I say what I did.

The area of the opening is more preferably 600 to 2,500 mm ² as a balance between the image quality and the size of the camera.
Especially preferred is ˜1,200 mm ² . In the photographic film cartridge according to the present invention, the area of this opening is substantially the effective screen area.

The shape of the opening is preferably rectangular,
Considering the shape of the camera, the long side / short side ratio is 1.2 to 2.0,
Preferably 1.3 to 1.7, particularly preferably 1.4 to 1.6,
Further, in this range, a visually psychologically stable image can be obtained.

As for the size of the roll-shaped photosensitive material loaded in the cartridge, it is preferable that both the width and the length are compatible with the systems currently on the market, and the width is 35 ±.
It is preferable that the length is 1 mm and the length is the same as that of commercially available 135-inch film for 12, 20, 24, and 36 shots. However, by making the film base thinner, it is possible to make the cartridge and the camera smaller, and to make the film longer without increasing the size of the camera, for example,
It is possible to take 72 pictures and 100 pictures.

The photosensitive material is preferably bonded to the spool in at least one of the film roll chamber and the winding chamber.

The material of the cartridge of the cartridge portion is preferably plastic in view of weight reduction of the photographing unit, easy operation, low cost, recycling (recycling) and the like.

As a preferable condition of the plastic cartridge, a known one is used as long as it is excellent in light-shielding property, has little influence on the photographic characteristics of the light-sensitive material, and is easy to be reused. it can. As preferred specific examples, polystyrene, polypropylene, polyethylene, polyvinyl chloride, polymethylmethacrylate, polyethylene terephthalate, cellulose acetate ester, and copolymers thereof, which are provided with a light-shielding property by adding carbon black or a pigment, can be used. Further, in order to make recycling more effective, it is preferable that the same plastic as the cartridge is used for the spool in the cartridge.

In the present invention, since the cartridge into which the photosensitive material is loaded has an opening for image exposure, it is preferable to apply a light shielding means. For example, JP-A-60-12044
Elastic light-shielding member as shown in No. 8, light-shielding member as shown in Japanese Utility Model Laid-Open No. 2-136247, pressing light-shielding member as shown in No. 2-136248, and disclosed in JP-A-2-275441 and 2-275442. Light-shielding paper, light-shielding passages disclosed in JP-A-54-111822 and JP-B-46-30055 are preferred.

In the present invention, it is preferable that the cartridge portion and the camera portion have a removable relation.
Therefore, it is preferable that at least one of them has a locking portion for attachment / detachment, and further, it is preferable to have a stopper for preventing detachment due to an erroneous operation or an involuntary operation.

In the present invention, it is preferable that the cartridge part also serves as the back cover of the camera part when the cartridge part is coupled with the camera part, from the viewpoint of weight reduction of the photographing unit, easy operation and easy reusability. A specific example is shown in FIG.

The photographing unit of the present invention is preferably a combination of a camera portion and a cartridge portion, but it is preferable to cover a part or all of the outside of the photographing unit with a cover. This not only prevents the user from absorbing the shock if the shooting unit is dropped, preventing drive system, optical system, and electrical system failures, and preventing image loss on the photosensitive material, This is effective in preventing loss of valuable image information that has already been photographed due to separation of the camera portion and the cartridge portion due to erroneous operation or unintentional operation.

The material of the cover is preferably one that can absorb impact, for example, paper, sponge, rubber, leather, cloth or the like.

The shape of the cover is not limited, but a belt-shaped or box-shaped one is preferable, so that the functions and operations of the lens unit, the finder unit, the strobe unit, the shutter button unit, the film winding unit, etc. of the photographing unit are not hindered. A box-shaped cover with holes is preferable.

The photographing unit of the present invention is preferably hermetically packaged by a plastic case, a moisture-proof bag or the like after the manufacture and before use. The relative humidity at 25 ° C in the sealed package is 30 to 70%, preferably 40 to 60%, particularly preferably 45 to 55%, and the oxygen partial pressure should be lower than that of the atmosphere by filling with an inert gas. Is preferred.

The photographing unit of the present invention preferably has a total volume of 150 to 190 cm ³ in order to reduce the weight and the operability, and is 3 when the photographing unit is imitated as a rectangular parallelepiped.
Of the sides, the second longest side is preferably 5.0 to 8.0 cm. The photographing unit satisfying the above conditions fits in the pocket of the shirt and is easy to move and has excellent portability.

[0058]

EXAMPLES Specific examples of the present invention will be described below, but the embodiments of the present invention are not limited to these.

(Production of Support) 100 parts of cellulose triacetate having a degree of acetylation of 61.4% and 15 parts of triphenyl phosphate
Part was completely dissolved in 738 parts of a mixed solvent consisting of methylene chloride-methyl alcohol, and the following organic dye (a),
(B) and (c) were added to obtain a dope.

[0060]

[Chemical 1]

Next, each dope was filtered and kept at 27 ° C., uniformly cast on a rotating 6 m (effective length 5.5 m) endless stainless steel band, and the solvent was evaporated until peeling became possible. It was peeled off from the band and dried to obtain a cellulose triacetate base having a thickness of 85 μm.

In all of the following examples, the addition amount in the silver halide photographic light-sensitive material is shown in grams per 1 m ² unless otherwise specified. Also, silver halide and colloidal silver are shown in terms of silver.

Example 1 An undercoat layer having the following composition was sequentially formed on both sides of a triacetyl cellulose film support from the support side.

Back side first layer Alumina sol AS-100 (aluminum oxide) 0.1 g (manufactured by Nissan Chemical Industries, Ltd.) Diacetyl cellulose 0.2 g Back side second layer diacetyl cellulose 100 mg Stearic acid 10 mg Silica fine particles (average particle size 0.2 μm) 50 mg Under A multi-layer color photographic light-sensitive material sample 100 was prepared by sequentially forming each layer of the photographic constituent layers having the compositions shown below from the support side on the surface of a triacetyl cellulose film support processed by drawing.
It was created.

First layer: antihalation layer (HC) Black colloidal silver 0.15 g UV absorber (UV-1) 0.15 g Compound (CC-1) 0.02 g High boiling point solvent (Oil-1) 0.18 g High boiling point solvent ( Oil-2) 0.18 g Gelatin 1.3 g Second layer: low-sensitivity red-sensitive emulsion layer (RL) Silver iodobromide emulsion (average grain size 0.3 μm, average iodide content 2.0 mol%) 0.28 g Silver iodobromide emulsion (Average particle size 0.4 μm, average iodine content 8.0 mol%) 0.20 g Sensitizing dye (S-1) 3.2 × 10 ⁻⁴ (mol / silver 1 mol) Sensitizing dye (S-2) 3.2 × 10 ^-4 (mol / silver 1 mol) Sensitizing dye (S-3) 0.2 × 10 ^-4 (mol / silver 1 mol) Cyan coupler (C-1) 0.50 g Cyan coupler (C-2) 0.13 g Colored cyan Coupler (CC-1) 0.07g DIR compound (D-1) 0.006g DIR compound (D-2) 0.001g High boiling point solvent (Oil-1) 0.55g Gelatin 1.0g Third layer: High sensitivity Red-sensitive emulsion layer (RH) Silver iodobromide emulsion (average particle size 0.7 [mu] m, an average iodide content of 7.5 mol%) 0.66 g Sensitizing dye (S─1) 1.7 × 10 ^-4 (mol / mole of silver) Sensitizing dye (S-2) 1.6 × 10 ^-4 (mol / silver 1 mol) Sensitizing dye (S-3) 0.1 × 10 ^-4 (mol / silver 1 mol) Cyan coupler (C-2) 0.23 g Colored Cyan coupler (CC-1) 0.05 g DIR compound (D-2) 0.02 g High boiling point solvent (Oil-1) 0.21 g Gelatin 0.80 g Fourth layer: Intermediate layer (IL-2) Gelatin 0.8 g Fifth layer: Low Sensitive green sensitive emulsion layer (GL) Silver iodobromide emulsion (average grain size 0.4 μm, average iodide content 8.0 mol%) 0.30 g Silver iodobromide emulsion (average grain size 0.3 μm, average iodide content 2.0 mol) %) 0.24 g Sensitizing dye (S- ⁴ ) 6.7 × 10 ^-4 (mol / silver 1 mol) Sensitizing dye (S-5) 0.8 × 10 ^-4 (mol / silver 1 mol) Magenta coupler (M-1) ) 0.17g Magenta coupler (M ─ 2) 0.43g Colored magenta coupler (CM-1) 0.10g DIR compound (D-3) 0.02g High boiling point solvent (Oil-2) 0.7g Gelatin 1.4g 6th layer: High sensitivity green sensitive emulsion layer ( GH) Silver iodobromide emulsion (average grain size 0.7 μm, average iodide content 7.5 mol%) 0.64 g Sensitizing dye (S-6) 1.1 × 10 ⁻⁴ (mol / silver 1 mol) Sensitizing dye (S -7) 2.0 × 10 ^-4 (mol / silver 1 mol) Sensitizing dye (S-8) 0.3 × 10 ^-4 (mol / silver 1 mol) Magenta coupler (M-1) 0.30 g Magenta coupler (M-2) ) 0.13g Colored magenta coupler (CM-1) 0.04g DIR compound (D-3) 0.004g High boiling point solvent (Oil-2) 0.20g Gelatin 0.80g 7th layer: Yellow filter layer (YC) Yellow colloidal silver 0.08g Additive (SC-1) 0.10g High boiling point solvent (Oil-2) 0.20g Gelatin 0.80g Eighth layer: Low sensitivity blue sensitive emulsion layer BL) Silver iodobromide emulsion (average grain size 0.3 μm, average iodide content 2.0 mol%) 0.19 g Silver iodobromide emulsion (average grain size 0.4 μm, average iodide content 8.0 mol%) 0.19 g Sensitization Dye (S-9) 5.8 × 10 ^-4 (mol / silver 1 mol) Yellow coupler (Y-1) 0.6g Yellow coupler (Y-2) 0.32g DIR compound (D-1) 0.003g DIR compound (D- 2) 0.006g High boiling point solvent (Oil-2) 0.38g Gelatin 1.2g 9th layer: High-sensitivity blue-sensitive emulsion layer (BH) Silver iodobromide emulsion (average grain size 0.8 μm, average iodine content 8.5) 0.45 g Sensitizing dye (S-10) 3.0 × 10 ^-4 (mol / silver 1 mol) Sensitizing dye (S-11) 1.2 × 10 ^-4 (mol / silver 1 mol) Yellow coupler (Y- 1) 0.18g Yellow coupler (Y-2) 0.10g High boiling point solvent (Oil-2) 0.05g Gelatin 0.7g 10th layer: 1st protective layer (PRO-1) Fine silver iodobromide (average particle size 0.08μm ) 0.15g UV absorber (UV-1) 0.07g UV absorber (UV-2) 0.07g Additive (HS-1) 0.1g Additive (HS-2) 0.05g High boiling solvent (Oil-1) 0.07 g High boiling point solvent (Oil-3) 0.07g Compound A 0.04g Compound B 0.004g Polymethylmethacrylate (average particle size 3 μm) 0.02g Copolymer of methylmethacrylate: ethylmethacrylate: methacrylic acid = 3: 3: 4 (weight ratio) Polymer (average particle size 3 μm) 0.13 g Gelatin 1.0 g The silver iodobromide emulsion used in the ninth layer was prepared by the following method.

A silver iodobromide emulsion was prepared by a double jet method using monodispersed silver iodobromide grains having an average grain size of 0.33 μm (silver iodide content 2 mol%) as seed crystals.

The solution <G-1> was heated to 70 ° C., pAg 7.8 and pH 7.
A seed emulsion corresponding to 0.34 mol was added while maintaining the temperature at 0 and stirring well.

(Formation of Internal High Iodity Phase-Core Phase) After that, while maintaining a flow rate ratio of <H-1> and <S-1> of 1: 1, the accelerated flow rate (the flow rate at the end is Initial flow rate of 3.6
Doubling) and was added over 86 minutes.

(Formation of External Low Iodity Phase-Shell Phase) Next, <H-2> and <S- while maintaining pAg 10.1 and pH 6.0.
2> was added at a flow rate accelerated by a flow rate ratio of 1: 1 (the flow rate at the end was 5.2 times the initial flow rate) over 65 minutes.

The pAg and pH during grain formation were controlled using an aqueous potassium bromide solution and a 56% aqueous acetic acid solution. After the particles are formed, they are washed with water by a conventional flocculation method, and then gelatin is added to redisperse the resulting mixture.
The pAg was adjusted to 5.8 and 8.06, respectively. The obtained emulsion was a monodisperse emulsion containing octahedral silver iodobromide grains having an average grain size of 0.80 μm, a distribution width of 12.4% and a silver iodide content of 8.5 mol%. Further, the third and sixth layers of silver iodobromide emulsion were prepared in the same manner.

<G-1> Ocein gelatin 100.0 g Compound-I 25.0 ml 28% Ammonia aqueous solution 440.0 ml 56% Acetic acid aqueous solution 660.0 ml Finish with water 5000.0 ml Compound-I: Polyethyleneoxy / polypropyleneoxy disodium succinate salt 10% ethanol solution <H-1> ossein gelatin 82.4g potassium bromide 151.6g potassium iodide 90.6g finish with water 1030.5
ml <S-1> Silver nitrate 309.2g 28% aqueous ammonia solution Equivalent to finish with water 1030.5ml <H-2> Ocein gelatin 302.1g Potassium bromide 770.0g Potassium iodide 33.2g Finish with water 3776.8ml <S-2> Silver nitrate 1133.0g 28% aqueous ammonia solution Equivalent to finish with water 3776.8ml In the same manner, average particle size of seed crystal, temperature, pAg, pH,
The emulsions having different average grain sizes and silver iodide contents were prepared by changing the flow rate, addition time and halide composition.

All were core / shell type monodisperse emulsions having a distribution of 20% or less. Each emulsion was subjected to optimum chemical ripening in the presence of sodium thiosulfate, chloroauric acid and ammonium thiocyanate to obtain a sensitizing dye, 4-hydroxy-6-
Methyl-1,3,3a, 7-tetrazaindene, 1-phenyl-5-mercaptotetrazole was added.

The compounds added to Sample 100 are shown below.

[0074]

[Chemical 2]

[0075]

[Chemical 3]

[0076]

[Chemical 4]

[0077]

[Chemical 5]

[0078]

[Chemical 6]

[0079]

[Chemical 7]

[0080]

[Chemical 8]

Incidentally, the above-mentioned sample 100 is the compound SU-
1, SU-2, viscosity modifier, hardener H-1, stabilizer ST
-1, antifoggants AF-1 and AF-2 (weight average molecular weight of 10,000 and 1,100,000), dye AI-
1, AI-2 and compound DI-1 (9.4 mg / m ² ).

Surfactants SU-1 and SU- of the photographic constituent layers
The coating amount of 2 was 0.36 g per 1 g of gelatin on average. All of the gelatin used had a calcium content of 10
It is less than 00ppm.

[0083]

[Chemical 9]

[0084]

[Chemical 10]

Next, a gelatin backing layer B1, B2 and B3 layers were provided in this order from the support side on the back surface of the sample 100 (on the side opposite to the photographic constituent layers with respect to the support), and the gelatin coating amount of each layer was set. Were prepared as shown in Table 1 to prepare Samples 101 to 114.

The gelatin used had a calcium content of 1000 ppm.

[0087]

[Table 1]

However, to the layer closest to the support, 15 wt% of high boiling solvent di-2-ethylhexyl phthalate with respect to gelatin was added as an oil droplet dispersion. Further, polymethylmethacrylate particles (average particle size of about 2.0 μm) were added to the layer farthest from the support so as to have a concentration of 0.3 g / m ² . The surfactant is SU-1 in the whole gelatin backing layer.
And SU-2 were added, and 0.13 g was added per 1 g of gelatin. Further, as a hardening agent, 2-hydroxy-4,6-dichloro-S-triazine was added so as to be 10 mg per 1 g of gelatin.

The gelatin backing layer of each sample was coated once with a multi-slide hopper type coater. Further, when the gelatin backing layer was first provided on the undercoated support and then the photographic constituent layer was coated, wrinkles were less likely to occur during the transport in the coating step.

Each of the samples 100 to 114 is 35 mm wide and 1.2 m long.
After cutting into a perforation hole of 135 size standard, it was wound on a spool with a shaft outer diameter of 7 mm in an atmosphere of 23 ° C. and 60% RH and loaded into a metal patrone with an inner diameter of 23 mm.

<Evaluation of low-humidity curl> Each sample is 30 ° C / 20%
After leaving it in the RH atmosphere for 6 hours, pull out the film from the cartridge, cut it to a length of 20 cm and place it on a horizontal surface.
The degree of curl was visually evaluated.

4 ... Significant curl 3 ... Large curl 2 ... Small curl 1 ... Extremely small curl <Evaluation of high-humidity curl> Evaluation was performed in the same manner except that the atmosphere was changed to 30 ° C. and 70% RH.

<Evaluation of Membrane Delamination> For each sample, the backing layer side was joined with a splicing tape with a splicer (MS650D, manufactured by Sanyu Co., Ltd.), and the joined portion was joined to the joined portion under an atmosphere of 23 ° C. and 20% RH. After applying a load of 1 kg in the longitudinal direction of the film for 5 seconds, the state of film peeling at the joint was evaluated.

A: No film peeling was generated B: Film peeling was slightly generated C: Film peeling was significantly generated. Curling characteristics (low humidity / high humidity) and film peeling evaluation results are shown in Table 2.

[0095]

[Table 2]

Photosensitive materials prepared in the same manner except that the backside first layer and backside second layer of Samples 100 to 114 were replaced with the following compositions also exhibited the same effects as the results shown in Table 2.

Back side first layer Ionene type polymer 0.2 g

[0098]

[Chemical 11]

Backside second layer diacetyl cellulose 107.6 mg Aerosil 200 (particle size: about 0.2 μm silica fine particles) 10.8 mg (manufactured by Nippon Aerosil Co., Ltd.) Citric acid half ethyl ester 6.4 mg Example 2 A polyethylene terephthalate film having a thickness of 80 μm Both sides were subjected to corona discharge treatment for 30 w / m ² minutes. Next, 1.0l of the below-cited resin on both sides and 2.0 surfactants with the following structural formula
g, hexamethylene-1,6-bis (ethylene urea) 3.0 g,
Apply a submersion liquid consisting of 9.0 l of pure water to a film thickness of 20μ,
And dried for 1 minute to form a first undercoat layer.

[0100]

[Chemical 12]

Resin below (copolymer dispersion) 2-hydroxyethyl methacrylate 75 parts Butyl acrylate 90 parts t-Butyl acrylate 75 parts Styrene 60 parts Sodium dodecylbenzene sulfonate 6 parts Ammonium persulfate 1 part Water 700 parts Copolymer Was synthesized as follows. That is, water was put in an open container equipped with a cooling tube, and after deaeration, the above-mentioned mixed substance was charged and emulsion polymerization was carried out at 80 ° C. for 5 hours to obtain a lower-reference resin having a dry solid content of 30 wt%.

Next, on both sides, the following water-soluble polymer compound 50
g in 500 ml of water, this aqueous solution was mixed and dissolved in 9.5 l of methanol solution containing 400 g of resorcin, and the coating solution was applied at a speed of 20 m / min using a roll coater and dried An undercoat layer was provided.

[0103]

[Chemical 13]

Using the double-sided undercoated support thus obtained, a gelatin backing layer was provided on one side and a photographic constituent layer was provided on the other side to prepare Samples 200 to 214 in the same manner as in Example 1. When the same evaluation as in 1 was performed, the effect of the present invention was obtained.

Example 3 For samples 100 to 114 loaded in the metallic patrone of Example 1, a compact camera "Konica Big Mini BM20" was used.
The test pattern was photographed using "1" (manufactured by Konica Corporation). Separate each sample from the cartridge and bond the backing layer side with a splicer, then use the cine-type automatic processor "NC
V-36 "(manufactured by Noritsu Koki Co., Ltd.). The development process is based on the Annual of the British Journal of Photography.
he British Journal of Photography P196〜198 (198
The processing step and processing solution for the color negative film shown in 8) were used.

In the initial part of the drying process, curl in the width direction of the film was generated and the film was crushed on the conveying roller, but there were some samples 103, 104, 106, 110,
The degree of 111 was small, and 108,109,112,113,114 had few problems.

Further, when the joining state of the splice portion was examined after the completion of the developing treatment, the joining was insufficient and some film peeling occurred, slight film peeling occurred, no problem at all. Some of them were substantially correlated with the above-mentioned occurrence of squashing, and the samples of the present invention were all excellent.

Example 4 The emulsions of the third and sixth layers of the sample 114 of the example 1 and the sample 214 of the example 2 were prepared by using a core-shell tabular silver iodobromide having an aspect ratio of 5.5% in 60% of the projected area. (Average iodine content of 4.5 mol%), and the emulsion of the ninth layer was 50% of the projected area.
Samples 401 and 402 were prepared in the same manner except that was replaced with a core-shell type tabular silver iodobromide having an average aspect ratio of 7.8 (average iodine content 4.0 mol%). For samples 401 and 402,
Each was loaded in a plastic cartridge shown in FIG. 2 and photographed and spliced in the same manner as in Example 3, and then the color developing step was carried out at 40 ° C. for 90 seconds, and the concentration of the color developing agent in the color developing solution was increased to 2.3 times. A rapid development process was carried out in the same manner except that the pH was raised by 0.1.

In the same manner as in Example 3, the condition of crushing in the drying step and the film peeling condition of the splice portion after the development processing was examined, and no problem was found.

Example 5 Samples 100, 107, 401 and 402 were respectively loaded into the photographing unit shown in FIG. 5 and then placed in an atmosphere of 23 ° C. and 20% RH for 24 hours.
Leave it for a while, wind the film under the same conditions,
The surface of the photographic constituent layer was observed under a microscope to examine the occurrence of scratches due to curling. Sample 100 generated significantly, Sample 1
07 was slightly generated, but Samples 401 and 402 were hardly generated.

[0111]

According to the present invention, a silver halide color light-sensitive material, a photographic film cartridge and a photographing unit which are small in size, light in weight, and suitable for a simple camera, in which curling, film peeling and other problems in physical properties are small can be obtained. .

[Brief description of drawings]

FIG. 1 is a perspective view of a silver halide color light-sensitive material loaded in a small cartridge.

FIG. 2 is a perspective view of a silver halide color light-sensitive material loaded in a plastic cartridge.

FIG. 3 is a sectional view of a cartridge.

FIG. 4 is a perspective view of a cartridge.

FIG. 5 is a photographing unit of the present invention including a cartridge and a main body.

FIG. 6 is a sectional view of a photographing unit.

[Explanation of symbols]

1 color photosensitive material 2 spools 3a Patrone 3b Plastic Patrone 4 openings 5 winding section 6 Film roll chamber 21 Cartridge part 22 Imaging unit body 23 lens 24 shutter 25 Locking part

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Takashi Uda             Konica Stock Market, 1 Sakura-cho, Hino City, Tokyo             In-house

Claims (6)

[Claims] 1. A transparent support having a thickness of 100 μm or less is provided on one side thereof with a photographic constituent layer comprising at least one red photosensitive layer, green photosensitive layer, blue photosensitive layer and non-photosensitive layer. And in a silver halide color light-sensitive material having a gelatin backing layer on the other side, the backing layer is 2
The gelatin coating amount of the layer farthest from the support is 25 times the gelatin coating amount of the whole gelatin backing layer.
% Or less, a silver halide color light-sensitive material. 2. A transparent support having a thickness of 100 μm or less is provided on one side thereof with a photographic constituent layer comprising at least one red photosensitive layer, green photosensitive layer, blue photosensitive layer and non-photosensitive layer. And a silver halide color light-sensitive material having a gelatin backing layer on the other side, the backing layer is 3
The gelatin coating amount of the layer closest to the support is 60% of the gelatin coating amount of the whole gelatin backing layer.
% Or less, a silver halide color light-sensitive material. 3. A transparent support having a thickness of 100 μm or less is provided on one side thereof with a photographic constituent layer comprising at least one red photosensitive layer, green photosensitive layer, blue photosensitive layer and non-photosensitive layer. And in a silver halide color light-sensitive material having a gelatin backing layer on the other side, the backing layer comprises
The total gelatin coating amount of one or more intermediate layers consists of a layer closest to the support, one or more intermediate layers and a layer farthest from the support, and the total gelatin coating amount of the gelatin backing layer is 12 or less. % Silver halide color light-sensitive material. 4. A photographic film cartridge in which the silver halide color light-sensitive material according to claim 1, 2 or 3 is loaded in a plastic cartridge. 5. A film roll chamber in which the plastic cartridge contains a roll-shaped unexposed photosensitive material,
A photographic film cartridge comprising: a winding chamber for winding the exposed light-sensitive material; and a bridge portion connecting the winding chambers and having an opening with an area of 400 mm ² or more. 6. A photographing unit incorporating the silver halide color light-sensitive material according to claim 1, 2 or 3 or the film cartridge according to claim 4 or 5.